Apparatus for making springs



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W. S. 0 APPARATUS FOR M G SPRINGS.

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W. S. OVER. APPARATUS FOR MAKING SPRINGS. Nb. 390,892. Patented Oct. 9, 1 888.

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UNITED STATES PATENT Erica.

\NILLIAM STITT OVER, OF OALLENSBURG, PENNSYLVANIA.

APPARATUS FDR MAKING SPRINGS.

SPECIFICATION forming part of Letters Patent No. 390,892, dated October 9, 1888.

Application filed February 3, 1898. Serial No. 262,905. (No model.)

To all whom it may concern:

Be it known that I,\V1LLIAM STITT OVER, a citizen of the United States, residing at Callensburg, in the county of Clarion and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Making Springs; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to machines for manufacturing bed-springs; and it has for its object to form a durable spring, which may be securely attached to a slat without the employment of fastening devices, as commonly used for such purposes, and one which may be quickly made without great care or experionce.

The invention will be fully understood from the following description and claims, when taken in connection with the accompanying drawings, in which Figure 1 is a View of two springs made by my improved machine, showing the same attached to a slat; and Fig. 2 is a cross-sectional view of a portion of a slat, showing a spring in position. Fig. 3 is a view of my improved machine in an operative position, and Fig. 4 is a View of the eye-forming device. Fig. 5 is a view of the mandrel with the spring partly formed on it, and Fig. 6 is a view of the eyeforming device with a spring engaged thereby in a manner to form the eye.

Referring by letter to the said drawings, Aindicates a standard orvertical frame,which may be secured to a work-bench or in a vise to properly hold it in an upright position. This standard has apertures at its upper end, and is designed to receive, interchangeably, the cone or mandrel shaft and the eye-forming shaft.

B indicates the cone or mandrel, which is in outline of the form usually employed in the manufacture of bed-springs, and may be made of wood or other suitable material externally grooved, as shown. This cone is secured to a longitudinal shaft, 0, which is of a sufficient length to receive its bearings in the upperend of the upright or standard A, and has its free end adapted to receive a crank-handle, as

shown, whereby the said shaft and its cone may be rotated. By having the crank-handle removable, as shown, it will be seen that after the wire has been turned on the cone its shaft may be slipped out from the standard andthe eyeforming shaft placed therein, as will be hereinafter more fully described. At thelarge end of this cone is secured an arm, D, which has its outer end hooked and extended beyond the periphery of the cone and overlying the groove a at the starting-point thereof, as shown more fully in Fig. 3 of the drawings. This hook is designed to receive and hold one end (if the wire during the operation of forming the coils. The groove 1), which forms the second coilof the spring, is provided, in advance of the hook E, with a point or elevation, F, which, although not entirely filling the said groove transversely, is sufficiently raised to indent or mark the spring at the point where the eye is to be subsequently formed. The cone is protected at its reduced end with a stout metal tip, G, which also has external grooves to form the smaller coils of the spring, and the shaft forthe eoneis extended, as shown at H, to form the closely-wound coils at the lower end of the spring.

The eye forming shaft K is of a diameter equal to that of the cone shaft, having a collar near its outer end to form a stop, and ter' minating in a forked portion, L, one branch of which is shown longer than the other to more readily set itself in the notch of the wire and bend the same.

The operation is as follows: A reel of wire being placed in properposition and the standard secured upright, as before described, the mandrel or cone shaft is placed in the bearings at the upper end of the standard and the crank-arm placed on-the inner end thereof. The operator then grasps the wire and places the end under the hook E and bonds the same point at which the eye M of the spring is to be made. The operation is then continued until the spring has been formed, after which the wire may be cut by a tile or other suitable device. The spring thus formed is then removed and the cone-shaft slipped from the standard, after which the shaft K is placed therein and the crank-arm applied. The fork of this shaft engages the wire at the point or bend marked by the cone, and by simply giving the shaft a turn while the spring is held in the other hand an eye-such as M-will be formed therein to receive the hook on the free end of the wire.

It will be observed that the eye is formedin the spring by coiling the wire around the long branch of the fork on the shaft K, the short branch serving as a means to hold the wire while the eye is being formed, and,being short, will hold the wire only during one rotation of the shaft.

In using my spring on slats itis simplynecessary to form a hole in the slats of a diameter equal to the diameter of the reduced portion of the spring and force the same therein, whena firm attachment will be had without the use of objectionable devices.

Having described my inventiomwliat I claim 15- 1. The combination, with a rotative shai' 't,of a cone or mandrel fixed thereon and grooved as described and the elevation in the groove of the cone to mark the wire at the point to form the eye, substantially as specified.

2. The combination, with a standard, of a cone grooved as described, and having a shaft, and provided in one of the grooves with a marking elevation, and a rotative shaft having one end forked to engage the wire at the point marked and form the eye therein, substantiall y as specified.

3. The combination, with the cone grooved as described and having a shaft, of the hooked arm at the large end thereof and overlying the first groove and the elevation arranged in the cone to indicate the point to form the eye,snbstantially as specified.

In testimony whereof I aftix my signature in 45 presence of two witnesses.

\V l LLlA M STITT OVE R.

\Vitnesses:

ADA R. LAUGHLIN, B. G. SLAUGI-IENHOPT. 

